Rainfall erosivity is a reflection of potential soil erosion caused by rainfall and an important factor of soil erosion models.
降雨侵蚀力是反映由降雨引起土壤侵蚀的潜在能力，是土壤侵蚀模型的重要因子。
Soil erosion is a major factor of causing environmental degradation.
土壤侵蚀是造成环境退化的一个主要因素。
Ravine density, which is an important factor indicating the extent of the fragmentation of the Earth surface, plays a significant role in the research of soil erosion and landform evolution, etc.
沟壑密度是反映地表破碎程度的重要因子，在土壤侵蚀、地貌演变等研究中有重要作用。
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